Earlier reports said troopers were discouraging anyone from driving up the mountain if they didn't need to, but Elliott said that wasn't the case Sunday afternoon.

"I think the rain let up so we were able to get the completely open for everybody." Elliott said.

The National Weather Service has issued a flash flood warning for southern parts of Nevada and Utah on Sunday.

Officials say there's a potential for showers and thunderstorms through Sunday evening which could result in flash flooding and possibly an inch or two of rain in some areas.

The National Weather Service has issued a flash flood warning for Clark County and Nye County through the afternoon.

A flash flood watch has been issued for parts of Clark, Lincoln and Esmeralda counties and the Lake Mead and Red Rock Canyon areas through Sunday night.

In southwest and south central Utah, a flash flood watch is in effect through Sunday night for the Zion National Park and Glen Canyon areas.

Meteorologist Mike Kennedy told the Las Vegas Sun that the Las Vegas area has had unusually high levels of moisture in recent days, and officials expect any storms to produce a lot of rain.

Kennedy says the thunderstorms will east on Monday, with only a 25 percent chance of storms.

Thunderstorms on Saturday led officials to temporarily close some roads.

The Las Vegas Review-Journal reports that Grand Teton Drive, Rainbow Boulevard and Farm Road were all closed Saturday evening due to flooding, and the Nevada Highway Patrol closed U.S. 95 near Laughlin Highway and State Route 160 in Nye County.

At Maryland Parkway and Cactus Avenue in Las Vegas, a private road at a construction site partially collapsed Saturday near a ravine, according to KLAS-TV.

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